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PROCESS FOR MANUFACTURING BANK NOTES, (its.

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TO ALL WHOM IT MAY CONCERN:

Be it known that I, GEORGE T. JONES, of Cincinnati, in the county ofHamilton, and Stateof Ohio, have invented a new and improved Process forManufacturing Bank Notes, Bonds, and analogous securities; and I declarethat the following is a sufliciently full, clear, and exact descriptionthereof to enable one skilled in the art to which my inventionappertainsto carry the same into eifect.

The primary object of my invention is to prevent danger ofcounterfeiting, either by photography, or by the transfer of the print.For this purpose I employ, in combination, the two different processesknown as surface and plate printing, the first being adapted for theapplication of delicate and brilliant colors, which, owing to the lackofbody or consistency in their materials, cannot be successfully used inplate printing, and the latter being required for taking'impressions ofline engravings.

The second essential feature of my combined process is the printingdirectly upon the body of the paper before sizing, so as to cause theink and coloring matter to penetrate and come in actual contact with thefibres of the paper. v i

The third feature is the subsequent covering and securing the printimpression or written characters with a coating of size, which,permeating the body of the paper and the ink, aifords strength to theformer, and

prevents the transferring of the latter.

The fourth feature is the use of inks of such colors or combination ofcolors as to render impossible the copying of the notes, &c., by anyknown process of photography In carrying out my invention I print uponunsized paper, by the surface or letter-press process, with variouscolors, such as carmine,-.=lakc, chrome-green, madder-red, ultramarine,or any of them, or others, which, by reason of the soft consistency oftheir materials, or from other causes, are not adapted for plateprinting. Either before or after the said surface printing, the lineengravings or other work which require it are printed by the plateprocess with black carbon ink in customary manner. By printing directlyupon the paper before the application of size, I am enabled to producemuch more clear and sharp impressions, and the ink and coloring matterare caused to penetrate the body of the paper and, by coming into actualcontact with its fibres, are made more permanent and secure than ifapplied to sized paper. After the completion of the two printingoperations, I treat the paper with a compound size, which permeates theentire body of the paper and of the inks, imparts great strength anddurability to the paper, and being insoluble in either acid, alkali, orwater, makes it impossible to transfer the prints or remove them in anymanner without destroying the bank note'or other document undertreatment. The size for this purpose may be variously made, but thefollowing compound has been found to operate with good success animalalbumen, twenty parts; gum tragacanth, two parts; silicate of soda orpotash, one part, the paper being heated (by passage between calendarrollers or by any other suitable means) to from 150 to 200, to solidifythe size. a

I am aware that some of the features of my combined process, andpossibly all the separate elements thereof, (with the exception of asize, which, by being solidified by heat, may not be again dissoivod,)may have been before practised or known; but taken separately no part ofthe process is fully cifcctive for the prevention .of counterfeiting byone or other of the modes used for that purpose. 1

The advantages of my combined process may be summed up as follows First.I print entirely upon unsized paper, thereby securing the accuracy andbeauty of the original engraving, the same as now exhibited only byIndia-proof impressions. In using colors, even the most delicate inksare available, with all the consistency required to give brilliancy anddurability; and without sizing of the paper these inks are absorbed andbecome an integral part of the paper fabric.

Second. By these improvements the finest work of'the geometrical latheand medallion ruling is first ro produced in the form of male plates,for surface printing upon unsized paper, as proposed by this newprocess; This enables us to-use the carmine and other delicate tints,and protect them from wear by handling, through the double process ofabsorption in printing, and subsequently sizing and calendering, to givea smooth surface over all the various inks employed. If the colors usedby this process are anti-photographic, as they can be, the liability toimitation by that art is thereby entirely avoided.

Third. The process of printing upon unsized paper by this new methodadmits of the use of all inks to the best advantage for effect andpermanency, as the two processes of printing from male and femaleplates, as proposed, enable us to use each and every color, as they maybe best adapt-ed to the one or the other mode of printing. I

Fourth. By the improved method, as proposed, I dispense with nothingvaluable in the present mode of production, while I secure a range ofapplication in the inks and colors which can only be madeavailable bythe two processes of male and female printing, and by using alwaysunsized paper in printing. All the excellence of the best devices andengravings can be exhibited so as to preserve the original integrity andbeauty of artistic designs of every description, and, for the first timein the history of this important art, I unite artistically all theadvantages of the combined use of plates and surface printing, protectedby subsequent sizing of the paper.

Fifth. By the size being composed of ingredients which, after beingsolidified by heat, may not be again dissolved, its removal is renderedimpossible. v

Sixth. The sizing and calendcring of the notes subsequently to printingputs the ink entirely out of reach,

- and thus efi'ectually prevents electrotyping from an impression.

Having thus described my invention, what I claim as new therein, anddesire to secure by Letters-Patent, is The combined process, hereindescribed, for producing bank notes or other securities by plate andsurface printing at separate operations and with various colors onunsized paper, and subsequently perfecting the paper and locking up theprints therein by the application of size which is subsequently renderedinsoluble by heat.

GEO. T. JONES.

Witnessesi Oeuvres KNIGHT, J. E. M. BOWEN. 1

